Y55G Field Controller – Compact GNSS RTK Controller with Built-in Precision

The Y55G field controller is a modern geodetic controller with an integrated GNSS RTK receiver. It features a multi-frequency 1408-channel board supporting L1, L2, and L5 bands. The device supports all major satellite systems: GPS, GLONASS, BeiDou, Galileo, QZSS, and IRNSS, ensuring stable positioning even in challenging environments.

The controller runs on the Android 10 operating system, offering a user-friendly and intuitive interface.

Package Contents

• Y55G Field Controller

• Pole Mount for Controller

• Permanent license for SurPad 4.2 or geometer SCOUT (if selected in the kit)

Compact All-in-One RTK Accuracy Solution

The Y55G field controller is a unique all-in-one solution that combines a 5.5-inch touchscreen, a physical keyboard, and a built-in RTK GNSS module in a single device. With built-in support for NTRIP corrections, it enables centimeter-level accuracy without the need for an external receiver or pole. Everything is integrated into one compact unit – a true portable RTK solution that saves time, weight, and effort in the field.

Ideal for a Wide Range of Applications

This form factor makes the Y55G controller especially valuable in agriculture – for precise field boundary mapping, cultivation planning, or fertilizer application. It is also convenient for forestry tasks such as plantation inventory, tree marking, and resource tracking. Additional applications include:

• Mapping and infrastructure monitoring

• Urban planning and cadastral work

• Environmental studies

• Construction and volume control

The Y55G is a tool that allows for accurate GNSS measurements without bulky equipment, offering mobility, autonomy, and professional precision in one device.

High-Quality Display and Keyboard

The Y55G is equipped with a bright 5.5-inch TFT display with a resolution of 1920×1080 pixels and a brightness of 500 nits, allowing for comfortable use even in direct sunlight. It also features a compact QWERTY keyboard for easy data entry.

RTK Support and Raw Data Logging

The Y55G field controller enables real-time RTK measurements by receiving corrections via the Internet or radio communication, while simultaneously logging raw satellite data for post-processing. It supports connecting an external geodetic antenna, allowing measurement accuracy of up to < 1 cm.

Decimeter Accuracy Without RTK

Even without access to local RTK corrections, the Y55G controller can achieve decimeter-level accuracy using free PPP correction services based on Galileo HAS or BeiDou B2b.

Maximum Capability for Fieldwork

The Y55G controller can operate:

• Through RTK networks of continuously operating GNSS stations by receiving corrections over the Internet (NTRIP);

• In raw data logging mode for later post-processing in the office.

This makes the Y55G controller an ideal choice for surveyors who demand high accuracy, reliability, and flexibility across various field conditions.